Title :
A new structure for the silicon retina
Author :
Chung-Yu Wu ; Chin-Fong Chiu
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
A new silicon retina structure in CMOS is proposed and analyzed, which incorporates a parasitic phototransistor as an isolated photoreceptor with many phototransistors in a common well region. The smooth function is achieved by the diffusion of photogenerated carriers in the common well. Experimental results have verified the correct functions of the new structure as a silicon retina. Small chip area and compact wiring make the new structure quite realizable with the associated neural networks in VLSI.<>
Keywords :
CMOS integrated circuits; VLSI; analogue processing circuits; elemental semiconductors; image sensors; integrated optoelectronics; phototransistors; silicon; Si; Si retina structure; VLSI; chip area; common well region; compact wiring; isolated photoreceptor; parasitic phototransistor; photogenerated carriers; smooth function; Analog processing circuits; CMOS integrated circuits; Image sensors; Integrated optoelectronics; Phototransistors; Silicon; Very-large-scale integration;
Conference_Titel :
Electron Devices Meeting, 1992. IEDM '92. Technical Digest., International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0817-4
DOI :
10.1109/IEDM.1992.307396
